Question

使用GoogleSignIn和GoogleAPIClientForREST，我已经能够登录谷歌，甚至可以使用Google Drive iOS quickstart中的代码获取文件列表。真的我不明白的是如何按文件类型过滤掉请求的结果，或者真正如何获取子文件夹的内容。 Google Drive REST documentation根本没有帮助。

澄清问题：而

let query = GTLRDriveQuery_FilesList.query()

query.pageSize = 10

service.executeQuery(query,
                             delegate: self,
                             didFinish: #selector(displayResultWithTicket(ticket:finishedWithObject:error:)))

与

完美配合

func displayResultWithTicket(ticket: GTLRServiceTicket,
                             finishedWithObject result : GTLRDrive_FileList,
                             error : NSError?) {

    if let error = error {
        print(error.localizedDescription)
        return
    }

    var text = "";

    if let files = result.files, !files.isEmpty {

        text += "Files:\n"
        for file in files {
            text += "\(file.name!) (\(file.identifier!))\n"
        }
    } else {
        text += "No files found."
    }
    print(text)
}

，我不知道如何只获取文件夹或如何获取子文件夹中的文件。

Answer 1

对于列出文件夹，我们要声明mimeType就像这样

  let root = "(mimeType = 'application/vnd.google-apps.folder' or mimeType = 'image/jpeg' or mimeType = 'image/png' or mimeType = 'application/pdf' or mimeType = 'application/epub' or mimeType = 'application/msword' or mimeType = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document') and '\(root)' in parents and trashed=false"

现在，您可以传递此根目录，仅列出您所需的需求

func GoogleDrivelistFiles(root : String) { //root 
    let query = GTLRDriveQuery_FilesList.query()
    query.pageSize = 100
    query.q = root
    query.fields = "files(id,name,mimeType,modifiedTime,createdTime,fileExtension,size,parents,kind),nextPageToken"
    service.executeQuery(query, completionHandler: {(ticket, files, error) in
        if let filesList : GTLRDrive_FileList = files as? GTLRDrive_FileList {

            var cloudArray = Array<FileObject>()
            if let filesShow : [GTLRDrive_File] = filesList.files {
                for Array in filesShow {
                    let name = Array.name
                    let mimeType = Array.mimeType
                    let id = Array.identifier
                    let folder = (mimeType as NSString?)?.pathExtension
                    let isfolder = true
                    let parents = Array.parents
                    var parentPath : String!
                    for arrayParents in parents! {
                        parentPath = arrayParents
                    }

                    let creationTime = Array.createdTime?.date
                    let modifiedTime = Array.modifiedTime?.date
                    let fileSize : Int!
                    let fileExtension : String!
                    if isfolder == true {
                        fileSize = 0
                        fileExtension = "Folder"
                    }else {
                        fileSize = Array.size?.intValue
                        fileExtension = Array.fileExtension
                    }
                    if folder == "folder" {
                    let content = FileObject(path: mimeType!, isFolder: true, parentPath: parentPath!, fileName: name!, creationDate: creationTime!, lastModified: modifiedTime!, fileSize: fileSize!, fileExtension: fileExtension!, fileId: id!, isSyncing: true)
                    cloudArray.append(content)
                    } else {
                        let content = FileObject(path: mimeType!, isFolder: false, parentPath: parentPath!, fileName: name!, creationDate: creationTime!, lastModified: modifiedTime!, fileSize: fileSize!, fileExtension: fileExtension!, fileId: id!, isSyncing: true)
                        cloudArray.append(content)
                    }
                }
            }
            DispatchQueue.main.async {
            self.delegate?.DataRefresh(fileObject: cloudArray)
            }

        }else {

        }
    })
}

为了获得subFolder，您也可以在didSelectTable上写，并且您希望将此根传递给相同的函数GoogleDriveListFiles（）。

//ForGeting SubFolders//
 func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    let FolderId = array[indexpath.row].id
 //important step
 let FolderIdroot = "(mimeType = 'application/vnd.google-apps.folder' or mimeType = 'image/jpeg' or mimeType = 'image/png' or mimeType = 'application/pdf' or mimeType = 'application/epub' or mimeType = 'application/msword' or mimeType = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document') and '\(FolderId)' in parents and trashed=false"

  //now you can call that fun which I have already written for listingFiles func GoogleDrivelistFiles(root :String)//

   GoogleDrivelistFiles(root : FolderIdRoot)
 }

Answer 2

嘿，您可以使用以下功能获取所有文件夹列表：-

func getAllfolders() {

   let root = "mimeType = 'application/vnd.google-apps.folder'"

   let query = GTLRDriveQuery_FilesList.query()
   query.pageSize = 100
   query.q = root
   query.fields = "files(id,name,mimeType,modifiedTime,createdTime,fileExtension,size),nextPageToken"

   service.executeQuery(query, completionHandler: {(ticket, files, error) in

       if let filesList : GTLRDrive_FileList = files as? GTLRDrive_FileList {
           if let filesShow : [GTLRDrive_File] = filesList.files {
               print("files \(filesShow)")
               for ArrayList in filesShow {
                   let name = ArrayList.name ?? ""
                   let id = ArrayList.identifier ?? ""
                   print("hello\(name)", id)
               }
           }
       }
   })
 }

Answer 3

您可以获取所有文件夹列表，包括/不包括已删除文件夹：-

func getAllfolders() {

   let root = "mimeType = 'application/vnd.google-apps.folder'" // including trash folder or add and trashed=true
   //let root = "mimeType = 'application/vnd.google-apps.folder' and trashed=false" // excluding trash folders
   let query = GTLRDriveQuery_FilesList.query()
   query.pageSize = 100
   query.q = root
   query.fields = "files(id,name,mimeType,modifiedTime,createdTime,fileExtension,size),nextPageToken"

   service.executeQuery(query, completionHandler: {(ticket, files, error) in

       if let filesList : GTLRDrive_FileList = files as? GTLRDrive_FileList {
           if let filesShow : [GTLRDrive_File] = filesList.files {
               print("files \(filesShow)")
               for ArrayList in filesShow {
                   let name = ArrayList.name ?? ""
                   let id = ArrayList.identifier ?? ""
                   print("hello\(name)", id)
               }
           }
       }
   })
 }

在Swift 3中获取Google Drive iOS的基本目录中的文件夹列表？

3 个答案: